U.S. patent application number 10/301331 was filed with the patent office on 2003-10-02 for recording or reproducing apparatus using a disc medium.
This patent application is currently assigned to Hitachi, Ltd.. Invention is credited to Hashiguchi, Yasuhiro, Kodama, Kazuyuki, Naitou, Takao.
Application Number | 20030184670 10/301331 |
Document ID | / |
Family ID | 28449558 |
Filed Date | 2003-10-02 |
United States Patent
Application |
20030184670 |
Kind Code |
A1 |
Hashiguchi, Yasuhiro ; et
al. |
October 2, 2003 |
Recording or reproducing apparatus using a disc medium
Abstract
In a disc apparatus, such as an optical disc video camera, etc.,
for recording or reproducing information onto/from a disc medium
received in a cartridge, for obtaining reduction in a number of
parts building up a mechanism for holding a clamper, thereby
achieving a cartridge holder mechanism of a thinner type, wherein a
clamper for holding the disc medium while pressing thereon is
engaged with a clamp holder (a reinforcing plate) which
opens/closes with a disc cover (an outer cover) of an exterior of
the apparatus in the structure thereof. With this, With this, the
disc slider becomes unnecessary, which was disposed for moving the
clamper being held therewith. Also, although a relative positional
shift occurs between the clamper and the cartridge holder during
rotation of the cartridge holder since the rotation shaft of the
clamper differs from the rotation shaft of the cartridge holder,
however a guide portion is formed on the cartridge holder as a
unit, thereby in the structure thereof, regulating it with this,
when the clamper comes close to the cartridge holder.
Inventors: |
Hashiguchi, Yasuhiro; (Mito,
JP) ; Kodama, Kazuyuki; (Mito, JP) ; Naitou,
Takao; (Mito, JP) |
Correspondence
Address: |
TOWNSEND AND TOWNSEND AND CREW, LLP
TWO EMBARCADERO CENTER
EIGHTH FLOOR
SAN FRANCISCO
CA
94111-3834
US
|
Assignee: |
Hitachi, Ltd.
Tokyo
JP
|
Family ID: |
28449558 |
Appl. No.: |
10/301331 |
Filed: |
November 20, 2002 |
Current U.S.
Class: |
348/345 ;
386/E5.072; G9B/31.002 |
Current CPC
Class: |
G11B 17/0286 20130101;
H04N 5/85 20130101; G11B 17/046 20130101; H04N 5/772 20130101; G11B
31/006 20130101 |
Class at
Publication: |
348/345 |
International
Class: |
H04N 005/232 |
Foreign Application Data
Date |
Code |
Application Number |
Mar 28, 2002 |
JP |
2002-090183 |
Claims
What is claimed is:
1. A disc apparatus, for recording or reproducing information
onto/from a disc medium, by loading a cartridge, in which said disc
medium is stored, comprising: a turntable for rotating said disc
medium stored in said cartridge; a clamper for transmitting a
torque from said turn table to said disc medium by pressing said
disc medium onto a side of said turntable; and a cartridge holder
for positioning said disc medium within said cartridge at a height
so that said disc medium can be rotated by said turntable, when
being rotationally closed after said cartridge is inserted into,
wherein said clamper for pressing said disc medium onto the side of
said turntable is engaged with a clamp holder, opening/closing with
an outer cover as a unit, which makes opening/closing operation
when said cartridge is inserted and ejected.
2. A disc apparatus as described in the claim 1, wherein said outer
cover is made of plastic material, while said clamp holder of metal
mainly, and said clamp holder has a function of a reinforce plate
of said outer cover in common.
3. A disc apparatus as described in the claim 1, wherein said clamp
holder and said cartridge holder make up a link mechanism; and an
angle defined between said clamp holder and said cartridge holder
is large in a condition where said outer cover is opened, while
said clamp holder and said cartridge holder are about in parallel
with each other in a condition where said outer cover is closed,
accompanying with the opening/closing operation of said outer
cover.
4. A disc apparatus for recording or reproducing information
onto/from a disc medium, by loading a cartridge, in which said disc
medium is stored, comprising: an outer cover making opening/closing
operation when said cartridge is inserted and ejected; a turntable
for rotating said disc medium stored in said cartridge; a clamper,
being movable in collaboration with the opening/closing of said
outer cover, for transmitting a torque from said turntable to said
disc medium, by pressing said disc medium onto said turntable; and
a cartridge holder for positioning said disc medium within said
cartridge at a height so that said disc medium can be rotated by
said turntable, when being rotationally closed after said cartridge
is inserted into, wherein said cartridge holder comprises a guide
portion for regulating movement of said clamper, and said guide
portion is formed on said cartridge holder as a unit.
5. A disc apparatus, as described in the claim 4, wherein said
clamper for pressing said disc medium onto the side of said
turntable is engaged with a clamp holder, opening/closing with an
outer cover as a unit, which makes opening/closing operation when
said cartridge is inserted and ejected.
6. A disc apparatus, as described in the claim 4, wherein said
guide portion formed on said cartridge holder is so shaped that a
gap defined between said clamper and said guide portion comes to be
small gradually when said clamper moves towards said turntable.
7. A disc apparatus, as described in the claim 4, wherein said
guide portion formed on said cartridge holder is made from cut up
pieces, each of which is cut up from said cartridge holder as a
unit; and said cut up pieces are opened radially upward at tip
portions thereof, while an inner diameter thereof or a size of
regulating a position of said clamper is larger than that of the
cut up portions.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Filed of the Invention
[0002] The present invention relates to a disc apparatus being able
to record or reproduce data onto/from a disc medium inserted or
received in a cartridge, and in particular relates to the structure
in relation to insertion, ejection or holding of the cartridge
into/from/in the disc apparatus.
[0003] 2. Description of the Related Art
[0004] An example of a loading mechanism of a video camera, which
uses an optical disc cartridge, in relation to the conventional
art, is disclosed in Japanese Patent Laying-Open No. 2000-21059
(JP-A 21059/2000), for example. In the conventional technology
disclosed, it is proposed to achieve an object to insert a disc
clamper into the cartridge with certainty and accuracy, with the
mechanism for holding a disc-like recording medium between a disc
table and a disc clamper. The disc clamper must be disposed
escaping from a moving path of the cartridge, until when the
cartridge is loaded or mounted. Then, according to this
publication, a disc slider 260 is provided on a disc tray 250, so
as to attach the disc clamper 300 to this disc slider, thereby
achieving the object mentioned above, i.e., escaping from the
moving path of the cartridge. When the cartridge is loaded, the
disc clamper is guided by means of a guiding slit formed in the
disc tray 256a, thereby holding the cartridge therebetween, in the
structure thereof.
BRIEF SUMMARY OF THE INVENTION
[0005] As was mentioned in the above, in relation with the
conventional art, for the purpose of holding the cartridge by means
of the disc clamper (hereinafter, being called only by "clamper"),
the disc slider is provided in an upper side, being a member
separated from the disc tray. For letting this disc slider to
rotate coaxially with the disc tray, parts or elements thereof must
be large in the number thereof, and since the disc slider is
located in an upper side of the disc tray, a whole of cartridge
holder device comes to be thick in the thickness thereof.
[0006] Accordingly, an object of the present invention is to
provide a cartridge holder device of a type of thinner in the
thickness, in the disc apparatus, such as a optical disc video
camera, etc., while reducing the number of parts of the mechanism
for holding the clamper.
[0007] For achieving such the object as was mentioned above,
according to the present invention, there is provided a disc
apparatus, for recording or reproducing information onto/from a
disc medium, by loading a cartridge, in which said disc medium is
stored, in the structure threof, wherein a clamper for holding the
disc medium while pressing is engaged with a clamp holder (a
reinforcing plate) which opens/closed with a disc cover (an outer
cover) of the exterior of the apparatus as a unit. With this, the
disc slider becomes unnecessary, which was disposed for moving the
clamper being held therewith.
[0008] Also, although a relative positional shift occurs between
the clamper and the cartridge holder during rotation of the
cartridge holder since the rotation shaft of the clamper differs
from the rotation shaft of the cartridge holder, however a guide
portion is formed on the cartridge holder as a unit, thereby in the
structure thereof, regulating it with this, when the clamper comes
close to the cartridge holder.
BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Those and other objects, features and advantages of the
present invention will become more readily apparent from the
following detailed description when taken in conjunction with the
accompanying drawings wherein:
[0010] FIG. 1 is an exploded view of principle portions of an
optical disc video camera, according to an embodiment of the
present invention;
[0011] FIG. 2 is a perspective view of the video camera seen behind
thereof, under the condition where a disc cover 5 is opened;
[0012] FIG. 3 a plane view of a cartridge 15 for user of the video
camera, for explanation thereof;
[0013] FIG. 4 is a perspective view for showing the structure of a
mechanical portion 14 from a right-upper side, obliquely;
[0014] FIG. 5 is a perspective view for showing the condition where
the cartridge is locked on a cartridge holder after completing
insertion of the cartridge;
[0015] FIG. 6 is a side view of FIG. 5;
[0016] FIG. 7 is a side view of the cartridge under the condition
of being recordable or reproducible; and
[0017] FIG. 8 is a cross-section view elements of a clamper
portion.
DETAILED DESCRIPTION OF THE INVENTION
[0018] Hereinafter, embodiments according to the present invention
will be fully explained by referring to the attached drawings, in
particular on an optical disc video camera, for an example, for
recording video and/or audio taken into onto a recoding medium, an
optical disc, such as an optical disc stored or received in a
cartridge, for example.
[0019] FIG. 1 shows an exploded view of the principle portions of
the optical disc video camera, according to an embodiment of the
present invention. An outer configure of the optical disc video
camera is defined by a front case 2, an R case 3, an L case 4, a
disc cover 5, a rear case 6, an EFV portion 7 and an LCD portion,
etc. On the front case 2 can be attached a lens portion 12 for
picking up video viewed from the EFV portion 7, an accessory shoe
for attaching a strobe, etc., thereon, and a microphone for picking
up audio. Also, the LCD portion 8 comprises a display portion being
able to show or display the video picked up, the video reproduced
from a recoding medium loaded, etc. On circuit boards 13A and 13B
are formed circuits for controlling the entire operations of the
optical disc video camera, such as signal processing of the video
picked up through the lens portion 12 and the audio picked up
through the microphone 11, and recording the video and the audio
finished with the signal processing, etc. In the mechanical portion
14, the video and/or the audio are recorded onto the recording
medium, and/or data of the video and the audio recorded is
reproduced from the recording medium. Thus, with the present
optical disc video camera, data of the video and the audio, etc.,
are recorded and/or reproduced onto/from the recoding medium, using
such as an optical disc utilizing a phase change, through
irradiation of lights while rotating the optical disc by the
mechanical portion 14.
[0020] FIG. 2 is a perspective view of the optical disc video
camera, seen from behind thereof, under the condition that the disc
cover 5 is opened. The cartridge 15, receiving therein the
recording medium, i.e., the optical disc is inserted into the
cartridge holder 16 of the mechanism portion 14, and further the
cartridge is pushed into, thereby the cartridge holder 15 is locked
thereon. Further, under the condition that the cartridge 15 is
locked on, since a shutter 151 of the cartridge 15 (which will be
mentioned later) is opened, therefore the optical disc is exposed.
After locking the cartridge 15 on, when a user closes the disc
cover 5, then the cartridge 15 is loaded at the position where
recording/reproducing of the video and/or audio can be made
onto/from the optical disc, therefore the optical disc video camera
can record and/or reproduce the video and/or the audio. For loading
the recording medium, i.e., the optical disc from the condition
shown in FIG. 2 to the position where the recording/reproducing can
be made, the user pushes the disc cover 5 (i.e., close) by hand.
Further, in the present embodiment, an upper surface, a lower
surface, a front surface, a rear surface, and a right-hand and
left-hand surfaces mean directions indicated in FIG. 2.
[0021] FIG. 3 is a plane view of the cartridge 15 to be used in the
optical disc video camera 1. This cartridge 15 receives the
recording medium, i.e., an optical disc 156 within an inside
thereof, and is constructed so that the optical disc is exposed
outside through opening of the shutter 151 thereof. For the optical
disc 156 received in the cartridge 15, there are types, such as, a
type on both side surfaces of which can be recorded data, such as
the video and/or the audio, etc., a type on only one side surface
of which can be recorded data, such as the video and/or the audio,
etc., and the structure of the cartridge 15 may differ due to this
difference. Herein, explanation will be given on the type on both
side surfaces of which can be recorded data, such as the video
and/or the audio, etc. With the structure of this type, the shutter
151 is opened on both directions, i.e., a direction A and a
direction B.
[0022] Hereinafter, explanation will be given on a cartridge
loading mechanism, which is equipped with the optical disc video
camera 1. FIG. 4 shows a perspective view of showing the structure
of the mechanism portion 14, seen from the right-hand upper surface
side, obliquely. However, in the explanation given hereinafter, the
direction of inserting the cartridge, the direction of discharging
the cartridge means the directions indicated in this figure.
[0023] The mechanism portion 14 comprises, in addition to the
cartridge holder 16, a mechanism chassis 17. The mechanism chassis
17 is fixed on the R case 3 of the optical disc video camera 1
through a shock absorption dumper not shown in the figure. On the
other hand, the cartridge holder 16 is attached on the mechanism
chassis 17 through a bracket attached in a rotatable relationship
to the cartridge holder 16. Further, a clump holder 18 for holding
a clamper 181 with keeping a gap therebetween is attached to the
disc cover 5 of the optical disc video camera. Herein, the disc
cover is made of plastic; therefore a reinforcing plate(s) is for
necessary for strengthening thereof. Therefore, according to the
present embodiment, the clamp holder 18 is made of metal, thereby
functioning a reinforcing member of the disc cover 5 made of
plastic, in common. In the structure thereof, the cartridge holder
16 and the clamp holder 18 rotate into directions of the upper
surface and the lower surface, respectively, accompanying with the
open/close operation of the disc cover 5. With such the structure,
there is no necessity of a part for exclusive use thereof, such as
the disc slider that was used in the conventional art, therefore
effects can be obtained on reduction in the number of the parts, as
well as, in the thickness of that portion. This FIG. 4 shows the
mechanism portion 14 in the condition where the disc cover 5 is
opened.
[0024] The mechanism chassis 17 has pins 171A and 171B, and those
pins 171A and 171B are provided at positions, so that they are
inserted into positioning bores 152A and 152B when the cartridge 15
inserted normally. Further, the mechanism chassis 17 comprises a
pickup (not shown in the figure) for recording data of the video
and/or the audio, etc., by irradiating lights upon the optical disc
156, or reading out data of the video and/or the audio, etc., by
receiving reflection light therefrom, a spindle motor 30 for
rotating the optical disc 156, and a turn table 301 being provided
at a tip of said spindle motor 30 for putting or holding the
optical disc 156 therebetween, collaborating with the clamper 181,
which will be mentioned later, etc.
[0025] FIG. 5 is a perspective view for showing the condition where
the insertion of the cartridge 15 into the cartridge holder 16 is
completed by opening the disc cover 5 (wherein the disc cover is
not shown in the figure). FIG. 6 is a side view thereof, including
a cross-section view of a part thereof. As was mentioned
previously, the cartridge holder 16 is attached on the chassis 17
through the bracket 19, while the chassis 17 onto the R case 3.
And, the disc cover 5 is also attached onto the R case 3, and the
fulcrum of rotational movement of the disc cover 5 is made up with
a disc cover rotation shaft 186.
[0026] The cartridge holder 16 fixes up the cartridge 16 by means
of plate springs 252A and 252B attached to the cartridge holder 16,
thereby building up the structure, so that the cartridge 15 cannot
be moved, as far as the user thereof tries to withdraw it with an
intention to do so, for pulling out the cartridge 15 from the
optical disc video camera. Thus, due to the fact that the user of
the optical disc video camera closes the disc cover 5 from a stage
where this cartridge holder 15 is fixed, the cartridge holder 16 is
rotated around a cartridge holder rotation shaft 185, from the
position shown in FIG. 6 to the position shown in FIG. 7.
[0027] The clamp holder 18 of the disc cover 5 shown in FIG. 6 is
bent in a portion thereof, and a link pin J54 is fixed therein. A
guide bracket 168B provided on the upper surface of the cartridge
holder 16 is engaged with a link pin B 56 provided at one end of a
link 55, the other end of which is engaged with the link pin J 54
rotatably.
[0028] At the tip side of the clamp holder 18 is fixed a
pressurizing plate spring 57, and a free height if the said
pressurizing plate spring 57 is larger than the maximum distance
between the clamp holder 18 and the cartridge holder 16 determined
by the link mechanism mentioned above, For this reason, upon the
link pin 54 and the link 55, as well as the guide bracket 168B are
always functioned pressures, thereby they are in closely contact
with one another.
[0029] When the user rotates the disc cover 5 around the disc cover
rotation shaft 186, the clamp holder 18 rotates around the disc
cover rotation shaft 186, while the cartridge holder 16 around the
cartridge holder rotation shaft 185, and the link pin B56 moves
sliding on a surface of the guide bracket 168B. Accompanying with
rotation of the disc cover 5, there occurs difference in rotation
angle between the clamp holder 18 and the cartridge holder 16,
therefore the angle defined between the clamp holder 18 and the
cartridge holder 16 is large under the condition when the disc
cover 5 is opened, while they are almost in parallel under the
condition when the disc cover 5 is closed. However, in order to
close the disc cover 5, at the final state, it is necessary to give
suppression thereon against counter force of the pressurizing plate
spring 57. As a result of this, under the condition where the disc
cover 5 is opened, as shown in FIG. 6, a whole portions of the
clamper 181 held on the clamper holder 18 lies in an outside (an
upper side) of the cartridge holder 16, however under the condition
where the disc cover 5 is closed, as shown in FIG. 7, a
predetermined portion of the clamper 181 enters into the cartridge
holder in the condition thereof.
[0030] Namely, there is necessity to let the cartridge to escape
from, not so as it interfere with the clamper, when inserting the
cartridge, however, in the present invention, since the disc cover
(an outer cover) is so constructed that the clamper is able to
escape into a space defined by opening thereof, therefore there is
no necessity of providing the space for escape when the disc cover
is closes, thereby bringing about an effect of making thin in the
thickness of the apparatus as a whole.
[0031] FIG. 7 is a side view of showing the condition where the
cartridge 15 is held to be recordable or reproducible in the
position thereof. The clamper 181 is mounted with a magnet not
shown in the figure in a part thereof. When the optical disc 156 is
to be recordable or reproducible in the position thereof, the
clamper 181 holds the optical disc 156 between the spindle motor
30, on which an iron member is mounted, due to the magnetic force
of the magnet, thereby pressing it onto the turn table 301, so as
to be rotated. For this reason, when the optical disc 156 is to be
recordable or reproducible in the position, there is no engagement
or linkage between the clamper 181 and the clamper holder 18, and
also they are attached so as to hold the clamper 181 in a
relationship of height thereof, therefore the clamper 181 operates
cooperatively with closing/opening of the clamp holder 18, i.e.,
goes away from the turn table 301.
[0032] FIG. 8 shows the cross-section view of the principle portion
for letting the optical disc 156 to be put or held between the
clamper 181 and the turntable 301. The height of the clamper 181 is
make small in the diameter thereof, in a part on a way, in the
direction of the height, and this portion of the small diameter is
engaged with a recess portion 183 of the clamp holder 18, therefore
the clamper 181 will never come down therefrom, nor contact with
the clamp holder 18 when the optical disc 156 rotates.
[0033] When the user of the optical disc camera tries to close the
disc cover 5 to make recording or reproducing thereof, after
inserting the cartridge 15 therein, a center pin 182 of the clamper
181 rides over a hub center bore 302 on the way of the rotation
mentioned above, if the hub center bore 302 at the tip portion 302
of the spindle motor and the center pin 182 of the clamper 181 are
not formed within a predetermined accuracy, therefore it is
impossible to clamp the disc. In particular, as was mentioned
previously, the clamp holder 18, which rotates with the disc cover
5 mounting the clamper 181 thereon as a unit, is attached onto the
R case 3, while the cartridge holder 16 onto the chassis 17, and
further the chassis 17 is attached onto the R case 3. Therefore,
errors in attachment or fitting of the rotation shaft of the clamp
holder (i.e., the disc cover rotation shaft) 186 and the rotation
shaft 185 of the cartridge holder 16 come to be large, comparing to
the conventional art where both of the shafts are same to, due to
the large number of parts standing therebetween, thereby increasing
a possibility that the center pin 182 may ride over the hub center
bore 302.
[0034] For this reason, guides 165A to 165F are formed by cutting
them up from the cartridge 16, as a unit thereof. And, a gap
defined between interior surfaces of the guides 165A to 165F and an
outer peripheral surface of the clamper, is made to equal or less
than a predetermined value, thereby regulating shifting of the
center thereof. The clamper 181 attached onto the clamp holder 18
moves along with the guides 165A to 165F provided in the cartridge
holder 16, accompanying with open/close operation of the disc cover
5, and thereby holding the optical disc 156 between the turntable
301 of the spindle motor 30.
[0035] In this manner, though the clamper 181 is guided with the
guides 165A to 165F provided on the upper surface of the cartridge
holder 16, however it is further necessary to suppress a gap
defined between an outer diameter of the clamper 181 and inner
walls of the guides 165A to 165F. For this, after taking into
consideration, the inner diameter of the guides 165A to 165F or a
size for regulating a position of the clamper 181, the portions
being suppressed as far as possible is provided in a lower half of
the guides 165A to 165F. On the other hand, for the purpose of
preventing the guides 165A to 165F from being shifted in fore/back
directions, caused due to that the clamp holder 18 is higher at the
rotation center thereof than the cartridge holder 16 at the
rotation center thereof and that there is also a difference in the
rotation angles therebetween, when the clamper 18 is opened, and/or
from an interference due to the difference in the angle between the
clamper 181 and the cartridge holder 16, upper portions of the
guides 165A to 165F are opened in an upper direction, and the inner
diameter or a size for regulating the position of the clamper 181
is larger than a lower half thereof.
[0036] In the process of rotating movement of the cartridge 16 and
the clamp holder 18 mentioned above, the pins 171A and 171B on the
mechanism chassis 17 shown in FIG. 4 are inserted into the
positioning bores 152A and 152B, and thereby the cartridge 15 is
position on the mechanism chassis 17. Also, the cartridge 15 is
inhibited from being abnormally deformed by means of a guide
portion 161 of the cartridge holder 16, when the cartridge 15 is
inserted into the cartridge holder 16 in a normal direction, but if
the pins 171A and 171B cannot enter into the positioning bores 152A
and 152B normally due to shifting of the cartridge caused by some
reasons.
[0037] Next, explanation will be made on the operation when the
cartridge 15 is taken out or ejected, which is loaded inside the
optical disc video camera 1. FIG. 6 shows a perspective view of the
mechanism portion 14 in the condition that the cartridge 15 loaded
inside the optical disc video camera 1 can be taken out therefrom.
As is apparent from the fact that the reference numerals attached
in the drawings, the present condition is the same to that when the
cartridge 15 is completed in the insertion thereof into the
cartridge holder 16.
[0038] Under the condition of being recordatable or reproducible
shown in FIG. 7, when an eject button (mot shown in the figure)
thereof, the optical disc video camera release the disc cover from
the locking condition thereof. And when the user opens the disc
cover 5, the cartridge holder 16 and the clamp holder 18 movers
rotationally up to the position shown in FIG. 6. In this instance,
both the cartridge holder 16 and the clamp holder 18 are opened
relatively while moving rotationally. In the series of operations
mentioned above, the cartridge 15 comes in the condition that it
can be taken out as shown in FIG. 6, while keeping the condition of
the cartridge holder 15 holding the cartridge 16 therewith. The
cartridge 15 is kept to be engaged or linked with, by means of the
plate-like spring 251A and 251B, each of which shows elasticity in
the direction at about perpendicular to that of the ejection of
cartridge, as well as, the spring hooks 252A and 252B provided at
the tips thereof. Therefore, the user can take out the cartridge 15
from the optical disc video camera 1, by pulling out portions,
i.e., M portion and N portion exposed or projected from the
cartridge holder of that cartridge 15, in the direction of ejection
thereof, so as to release from the linkage with the spring hooks
252A and 252B.
[0039] As is fully explained in the above, according to the present
invention, in particular in relation to the mechanism for
inserting, holding and ejecting the cartridge into the cartridge
holder, there can be provided a disc apparatus with a simple
structure, therefore being assembled to be small in sizes with
ease, while suppressing the necessary parts down to minimal.
[0040] The present invention may be embodied in other specific
forms without departing from the spirit or essential feature or
characteristics thereof. The present embodiment(s) is/are therefore
to be considered in all respects as illustrative and not
restrictive, the scope of the invention being indicated by the
appended claims rather than by the forgoing description and range
of equivalency of the claims are therefore to be embraces
therein.
* * * * *